54 lines
1.3 KiB
Python
54 lines
1.3 KiB
Python
# Test that tasks return their value correctly to the caller
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try:
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import asyncio
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except ImportError:
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print("SKIP")
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raise SystemExit
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def custom_handler(loop, context):
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print("custom_handler", repr(context["exception"]))
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async def task(i):
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# Raise with 2 args so exception prints the same in uPy and CPython
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raise ValueError(i, i + 1)
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async def main():
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loop = asyncio.get_event_loop()
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# Check default exception handler, should be None
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print(loop.get_exception_handler())
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# Set exception handler and test it was set
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loop.set_exception_handler(custom_handler)
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print(loop.get_exception_handler() == custom_handler)
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# Create a task that raises and uses the custom exception handler
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asyncio.create_task(task(0))
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print("sleep")
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for _ in range(2):
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await asyncio.sleep(0)
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# Create 2 tasks to test order of printing exception
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asyncio.create_task(task(1))
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asyncio.create_task(task(2))
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print("sleep")
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for _ in range(2):
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await asyncio.sleep(0)
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# Create a task, let it run, then await it (no exception should be printed)
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t = asyncio.create_task(task(3))
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await asyncio.sleep(0)
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try:
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await t
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except ValueError as er:
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print(repr(er))
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print("done")
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asyncio.run(main())
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